Seiko Cal. 6628 - 691

The 6628-691 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-7e71012a7652]

Also known as: Navigator, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1993

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